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Warmly Congratulate Graphite Valley on Achieves Good Results in Five Small Innovation Activities for Millions of Employees in Heilongjiang Province

Release time:

Dec 30,2022

Recently, the Heilongjiang Provincial Federation of Trade Unions Office issued the "Notice on Outstanding Achievements of the" Five Primary "Innovation Competition for Millions of Employees in Heilongjiang Province in 2022", commending and rewarding a number of outstanding achievements of the "Five Primary" Innovation Competition. In the five primary innovation activities for millions of employees in Heilongjiang Province, Chen Fengquan of our engineering department won the second prize for his leading "conductive slurry solid-liquid mixed dispersion system, ma Hongwei of our research institute won the third prize for his leading" graphene conductive paste preparation technology. The conductive paste for lithium battery produced by our company is prepared by deep processing of graphene powder, carbon nanotube powder and NMP liquid. The finished product is in a uniformly dispersed suspension state and is in a non-dissolved state. Graphene and carbon nanotube are both materials with extremely large specific surface area. Its unique π bond makes the molecular force between graphene and NMP liquid relatively special, which makes it difficult to mix graphene and carbon nanotube powder into NMP liquid, after solid-liquid mixing, it presents non-Newtonian fluid state and characteristics, and there are a large number of particle agglomeration problems, which makes the subsequent processing extremely difficult. This problem has always been a long-standing problem in the conductive slurry industry for lithium batteries. At present, a total of more than 20 conductive slurry enterprises in China cannot completely solve the problem. Only by sacrificing product performance through high-energy sand mill grinding can uniform dispersion be achieved, and mass production equipment covers a large area and high energy consumption, after 7 years of production equipment improvement practice, combined with the experience of many kinds of conductive paste preparation equipment introduced by our company at home and abroad, the person in charge of this project has developed a set of professional conductive paste production equipment from process core technology to equipment core technology through 7 years of countless cycles of principle exploration, technological innovation and practical application of production. Our company found that there are many manufacturers of graphene conductive paste in China, but the product quality is generally low. The specific manifestations are poor quality of graphene raw materials, poor dispersion of graphene, poor ratio of carbon materials, difficulty in forming an ideal three-dimensional conductive network, and no significant effect on the improvement of lithium battery performance. Our company technicians decided to break the technical difficulties. The van der Waals force between the graphite sheets is broken by high pressure, and the graphene conductive paste with the number of sheets ≤ 5 is obtained. Improved self-developed automated high-energy dissociation equipment. Mature technology, environmental protection and safety, has been widely used in the actual production. As an innovative high-tech industrial group focusing on the fields of new energy and new materials, focusing on the R & D, production and sales of graphite, graphene, carbon materials and their applications, since its establishment, Graphite Valley has been based on scientific development and focused on independent innovation. Adhering to the development concept of "integrity-based, innovation as the soul", and constantly pursuing technology, products, services and management innovation; in the future, Graphite Valley will adopt industrial layout, scientific innovation, combined with the capital market, build and build a complete ecological block chain of graphite (ene) new material industry, promote the development of the industry, give full play to the advantages of Longjiang, create an industrial highland, grasp development opportunities, adhere to innovation and leadership, and strive to become a leader in the new energy and new material industry, so as to promote the rapid and healthy development of strategic emerging industries and promote sustainable economic and social development.

Recently, the Office of the Heilongjiang Provincial Federation of Trade Unions issued the "Notice on the Outstanding Achievements of the" Five Elite "Innovation Competition for Millions of Employees in Heilongjiang Province in 2022", commending and rewarding a batch of outstanding achievements of the "Five Elite" innovation competition. In the five elementary innovation activities,Division IChen Fengquan of the Engineering Department won the second prize for his leading "conductive slurry solid-liquid mixed dispersion system,Division IResearch Institute Ma Hongwei with its leading "graphene conductive paste preparation technology" won the third prize.

List of Outstanding Achievements of "Five Small" Innovation Competition for Millions of Employees in Heilongjiang Province in 2022

The conductive paste for lithium battery produced by our company is prepared by deep processing of graphene powder, carbon nanotube powder and NMP liquid. The finished product is in a uniformly dispersed suspension state and is in a non-dissolved state. Graphene and carbon nanotube are both materials with extremely large specific surface area. Its unique π bond makes the molecular force between graphene and NMP liquid relatively special, which makes it difficult to mix graphene and carbon nanotube powder into NMP liquid, after solid-liquid mixing, it presents non-Newtonian fluid state and characteristics, and there are a large number of particle agglomeration problems, which makes the subsequent processing extremely difficult. This problem has always been a long-standing problem in the conductive slurry industry for lithium batteries. At present, a total of more than 20 conductive slurry enterprises in China cannot completely solve the problem. Only by sacrificing product performance through high-energy sand mill grinding can uniform dispersion be achieved, and mass production equipment covers a large area and high energy consumption, after 7 years of production equipment improvement practice, combined with the experience of many kinds of conductive paste preparation equipment introduced by our company at home and abroad, the person in charge of this project has developed a set of professional conductive paste production equipment from process core technology to equipment core technology through 7 years of countless cycles of principle exploration, technological innovation and practical application of production.

Our company found that there are many manufacturers of graphene conductive paste in China, but the product quality is generally low. The specific manifestations are poor quality of graphene raw materials, poor dispersion of graphene, poor ratio of carbon materials, difficulty in forming an ideal three-dimensional conductive network, and no significant effect on the improvement of lithium battery performance. Our company technicians decided to break the technical difficulties.

The van der Waals force between the graphite sheets is broken by high pressure, and the graphene conductive paste with the number of sheets ≤ 5 is obtained. Improved self-developed automated high-energy dissociation equipment. Mature technology, environmental protection and safety, has been widely used in the actual production.

As an innovative high-tech industrial group focusing on the fields of new energy and new materials, focusing on the R & D, production and sales of graphite, graphene, carbon materials and their applications, since its establishment, Graphite Valley has been based on scientific development and focused on independent innovation. Adhering to the development concept of "integrity-based, innovation as the soul", and constantly pursuing technology, products, services and management innovation; in the future, Graphite Valley will adopt industrial layout, scientific innovation, combined with the capital market, build and build a complete ecological block chain of graphite (ene) new material industry, promote the development of the industry, give full play to the advantages of Longjiang, create an industrial highland, grasp development opportunities, adhere to innovation and leadership, and strive to become a leader in the new energy and new material industry, so as to promote the rapid and healthy development of strategic emerging industries and promote sustainable economic and social development.

Against the wind and meet the difficulties, the development of the graphite valley market has reached a new record high.

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